Nissan March K13. Manual — part 377
HAC-42
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONER]
SYSTEM SETTING
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Air distri-
bution ratio set becomes that of initial condition.
Inlet Port Memory Function
INFOID:0000000006057627
DESCRIPTION
When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.
Operating procedures for this trimmer are as per the following:
1.
Begin self-diagnosis STEP-5 mode. Refer to
HAC-22, "Diagnosis Description"
2.
Press fan (UP: +) switch to set system in auxiliary mode.
3.
Press FRE/REC switch as desired.
NOTE:
When battery cable is disconnected or battery voltage is below 10 V, memory function is canceled. Memory
function set becomes that of initial condition.
Display
Defroster door position
Automatically controls the FOOT mode
Manually controls the FOOT mode
(Initial setting)
OPEN
OPEN
OPEN
CLOSE
CLOSE
OPEN
CLOSE
CLOSE
FRE indicator
REC indicator
Setting status
Setting changeover
method
FRE
REC
OFF
ON
Shall be memorized (Initial set-
ting)
Shall be memorized. (Initial set-
ting)
FRE/REC switch: ON
ON
ON
Shall be memorized.
Shall be memorized.
ON
OFF
Shall be memorized.
Shall not be memorized.
OFF
OFF
Shall not be memorized.
Shall not be memorized.
AMBIENT SENSOR
HAC-43
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DTC/CIRCUIT DIAGNOSIS
AMBIENT SENSOR
Diagnosis Procedure
INFOID:0000000006024024
1.
CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the ambient sensor connector.
3.
Turn the ignition switch ON.
4.
Check voltage between ambient sensor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK AMBIENT SENSOR GROUND CIRCUIT CONTINUITY
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C auto amp. connector.
3.
Check continuity between ambient sensor harness connector and A/C auto amp harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK AMBIENT SENSOR
Check the ambient sensor components. Refer to
HAC-44, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the ambient sensor.
4.
CHECK AMBIENT SENSOR OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C auto amp. connector.
3.
Check continuity between ambient sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK AMBIENT SENSOR SHORT CIRCUIT
Check continuity between ambient sensor harness connector and the ground.
(+)
(
−
)
Voltage
(Approx.)
Ambient sensor
—
Connector
Terminal
E53
1
Ground
5 V
Ambient sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
E53
2
M50
37
Existed
Ambient sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
E53
1
M51
39
Existed
HAC-44
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
AMBIENT SENSOR
Is the inspection result normal?
YES
>> Replace the A/C auto amp.
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000006024025
1.
CHECK AMBIENT SENSOR
1.
Turn the ignition switch OFF.
2.
Remove the ambient sensor. Refer to
XX-XX, "*****"
.
3.
Check the resistance between the ambient sensor terminals. Refer to the applicable table for the normal
value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the ambient sensor.
Ambient sensor
—
Continuity
Connector
Terminal
E53
1
Ground
Not existed
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
15 (5)
12.73
−
10 (14)
9.92
−
5 (23)
7.80
0 (32)
6.19
5 (41)
4.95
10 (50)
3.99
15 (59)
3.24
20 (68)
2.65
25 (77)
2.19
30 (86)
1.81
35 (95)
1.51
40 (104)
1.27
45 (113)
1.07
IN-VEHICLE SENSOR
HAC-45
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
IN-VEHICLE SENSOR
Diagnosis Procedure
INFOID:0000000006024027
1.
CHECK IN-VEHICLE SENSOR POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the in-vehicle sensor connector.
3.
Turn the ignition switch ON.
4.
Check voltage between in-vehicle sensor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK IN-VEHICLE SENSOR GROUND CIRCUIT CONTINUITY
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C auto amp. connector.
3.
Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK IN-VEHICLE SENSOR
Check the in-vehicle sensor components. Refer to
HAC-46, "Component Inspection"
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the in-vehicle sensor.
4.
CHECK IN-VEHICLE SENSOR OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C auto amp. connector.
3.
Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK IN-VEHICLE SENSOR SHORT CIRCUIT
Check continuity between in-vehicle sensor harness connector and the ground.
(+)
(
−
)
Voltage
(Approx.)
In-vehicle sensor
—
Connector
Terminal
M41
1
Ground
5 V
In-vehicle sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M41
2
M50
40
Existed
In-vehicle sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M41
1
M50
19
Existed
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